Question

№1092!!!!!Пожалуйста

Answer 1

1) = 10/7*2*1/5*3=10/7*2*3*1/5=10/7*6/5=12/7=1*5/7
2) =3*1/4*2/3=1/4
3) = 11/6*90/11*4/9=20/3=6*2/3
4) = 55/27*16/5*81/11= 48